Alarm clock



FIG. 1 is a top, front perspective view of an alarm clock showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a right side view thereof, the opposite side view being a mirror image. 

CLAIM The ornamental design for an alarm clock, as shown and described. 